<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        //1.替换字符 replace ('被替换的字符','替换为的字符') 它只会替换第一个字符
        var str = 'andy'
        console.log(str.replace('a,b'));
        //有一个字符串 'abcordosdwdowdo' 要求把里里面所有的o替换为 *
        var str1 = 'abcordosdwdowdo';
        while (str1.indexOf('o') != -1) {
            str1 = str1.replace('o', '*')
        }
        console.log(str1);

        //2.字符转为数组 split('分隔符');   前面我们学过join 把数组转换为字符串
        var str2 = 'red,pink,blue'
        console.log(str2.split(','));
        var str3 = 'red&pink&bule'
        console.log(str2.split('&'));
    </script>
</head>

<body>

</body>

</html>